Method of and machine for manufacturing paper barrels



, R. S. BOLGER,

METHOD 0F AND MACHINE FOR MANUFACTURING PAPER BARRELS.

APPLICATION FILED JuLYx4, 1919.

1,428y469, PatentedSept. 5, 1922.

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R. S. BOLGER.

METHODv 0F AND MACHINE FOR MANUFACTURING PAPER BARRELS.

APPLICATION FILED IULY I4. 1919.

L428y469@ Paiendsept. 5, 1922.

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lll/l 51 nvm/Wo@ yPatented Sept. 5, 1922.

UNITED STATES QOBERT S. BOLGEB, 0F RICHMOND HILL, NEW YORK.

MTHOD 0F AND MACHINE 4FOR. MANUFACTURING PAPER ARRELS.

Application led July 14,

To all whom it may concern:

Be it known that I, ROBERT S. BOLGER, a citizen of the United States,residing at Richmond Hill, inthe county of Queens and State of New York,have invented new and useful Improvements in Methods of and Machines forManufacturing Pa er Barrels, of which the following is a specification.

My invention relates to machines for manufacturinv bilged barrels andparticularly those of the closed or imperforate wall type adapted forthe storage and transportation Qf\all kinds of goods and produce. Themain object in view is to produce a bilged barrel in a cheap way,without highly skilled labor and composed of cheap material, enablingbarrels to be placed upon the market at less cost than the well knownbarrels now in use and generally constructed of wooden staves and hoopsor bands.

Another object in view is to provide a machine which will produce abilged barrel body of sheet material in the form of strips, assembledinsuch relation to each other and united in such manner as to provide acommercially practical, strong and lightweight article well adapted forthe use above specified.

With the above and other objects in View, the invention consists in thenove] construction, combination and arrangement herein fully described,illustrated and claimed, and inthe method of manufacture hereindisclosed.

-In the yaccompanyin drawings Fig.l 1 lis aA vertica diametrical sectionthrough the machine showing a barrel tube in position. y

Fig. 2 lis a vertical transverse section, on the line 2-2 of Fig. 1.

Fig. 3 is a section similar to F ig. 1, after the bilging operation.

Fig.,4 is a section on the line 4-4 of Fig. 3.

Fig. 5 is asection similar to Fig. 1. after the pressure is releasedandthe barrel body is ready to be removed from'the machine.

Fig. 6 is a section on the line 6--6 of Fi 5.

j Fig. 7 is a side elevation of the barrel tube.

Fig. 8 is asideelevation of the bilged barrel body.

l ...e F ig.-9 is a section on the ,line 9-9 of Fig. 7.

1919. serial No. 310,784'.

a section on the line 10-10 Aconstruction and embodies separable halvesconnected at the bottom by one or more hinge pins D to the base in orderthat said sections of the form B maybe opened and moved apart to permitthe finished balk el body to be removed from the machine. The scc-,tionsof the form B are secured together at their free edges by any suitableclamping or fastening means indicated at E. The internal shape of thesections of the form B correspends with the bilged external face and sape of the finished barrel body as in Figs. 1 and 3. At one end of themachine there is a fixed sto or annular abutment F preferably consistmgof an integral part' and extension of the frame or base A. During thebilging operation, the barrel tube rests at one end against the stop F,the positionfof the barrel tube being thus (raged and clamped in thisposition at the point B 'of the outer form for the purpose of keepingthe ends` of the tube in proper alignment.

The inner form or core of the machine, in the illustrated embodimentthereof, is eX- pansible and collapsible and com rises a hollowcylindrical fixed member having openings Htherein, and also having afluid inlet connection or pipe I in the head J thereof, the same beingcontrolled by a valve or stop cock K.

The core member G, at the ends thereof, has annular flanges L formingraised and s aced seats for the end portions of a resllient, flexiblesleeve or tube M constituting the inner form proper. Oneend of saidsleeve or tube is held between the fixed stop F andthe adjacent flange Lof the member G. The other end of the sleeve or tube M may extend beyondthe other flange L to be held against the head N at that end of themember G and a clamp Oin the form of a disk secured to said head byfastening means I. Normally the sleeve or tube M assumes a truecylindrical condition as shown in Figs. 1 and 5 but is adapted to assumethe bilged shape of F 3 when fluid (air or liquid) is admitted underpressure to the fluid pressure chamber formed within and by the fixedand resilient member Gr and M of the core or form C.

A. barrel tube such as is drawn in Figs. 7 to 10 both inclusive, isplaced over the free end of both the inner form C and over theexpansible sleeve or tube M, as shown in Fig. l. The sections of theouter form B are then closed and fastened as in Fig. 2.

y Valve K is then opened and the fluid under pressure fills the fluidpressure chamber, passing through the openings H, expanding the sleeve Mand pressing the wall of the barrel tube firmly against the inside wallof the outer form the laminations of which are still free to changetheir relative positions as will appear. The pressure may be maintaineduntil the setting of the adhesive,

uniting the laminations of the body, has

reached any desired stage or until it has -completely set. The pressureis then released, permitting the sleeve or tube M to reassume its normalcylindrical condition. Then the sections of the outer form areunfastened and opened and the barrel body (now bilged) is removed fromthe machine. rThe above operation is repeated for each barrel body.

The barrel body is made up of strips l Iof sheet material, preferablyconsisting of dry, finished paper of suitable, density or hardness, toproduce a tough and commercially practical main 'barrel body wall, whensaid strips have been properly assembled and united vtogether ashereinafter explained. In this first step in the production as long atube as practicable is made and cut into sections each of suitablelength to form one barrel body. such length being greater than -thelength of the completed article in order to allow for longitudinalcontraction of the tube while undergoing the bilging operation abovedescribed.

The strips 1 are assembled on a suitable winding machine so that theywill preferably extend spirali of the barrel body wall, as shown, asthis results in a stronger and tougher barrel wall. The strips mayh'owever extend in other directions. However said strips are assembledwith their lateral portions overlapping each other, as shown, and areunited by a suitable adhesive. A slowly drying adhesive is preferablyused 'for such purpose to allow ample time to carry out the bilgingoperation before the adhesive sets. l

By the means above described and with the use of dry, finished paper oranalogous sheet material cut into strips, a commercially valuable barrelbody is formed, well adapted for the rough usage and the storage orshipment of all kinds of goods. Heads of suitable construction andmaterial may be used in conjunction with such barrel body.

1. In a barrel body bilging machine, the combination of outer and innerforms between which the barrel body wall is adapted to be shaped underpressure, the inner form embodying a resilient wall held at both ends,the outer wall being bilged and non-resilient.

2. In a barrel body bilging machine, the combination of outer and innerforms between which the barrel body wall is adapted to be Shaped underpressure, one form embodying a resilient wall held at both ends, and afluid pressure chamber of which said resilient wall forms a part, theother form embodying a bilged imperforate wall.

3. In a barrel body 'bilging machine, the combination of outer and innerforms betweenpwhich the'barrel body is adapted to be shaped underpressure, the inner. form embodying relatively fixed end portions andbeing capable of distortion under fluid pressure, and the vouter wallbeing internally bilged' and displaceable.

4. In a barrel body bilging machine, the combination of outer and innerforms between which the barrel body wall is adapted to be shaped underpressure, the outer form embodying an imperforate internally bilged anddisplaceable wall. and the inner form having a resilient wall held atboth ends and adapted under internal fluid pressure to eX- pand themedial portion of the barrel body wall and also adapted to be collapsedto permit the barrel body to be removed.

5. In a barrel body bilging machine, the combination of outer and innerforms between Which the barrel body wall is adapted to be shaped underpressure, the outer form having an imperforate internally bilged'- wall,and the inner form embodying a fluidpressure chamber having a deformablewall held at both ends and adapted to exert outward shaping pressureagainst the barrel body wall'.

6. In a barrel body bilging machine, means for deforming a tubularcylindrical body and shaping such body into bilged formation, includinga mandrel, and displaceable clamping means to hold one end of a barrelbody on the mandrel during the bilging operation.

7. In a barrel body bilging machine, means controlled by fluid pressurefor deforming a tubular cylindrical body and shaping the same intobilged barrel body formation, said means including a normallycylindrical but deformable element with relatively fixed end. portions.

8. The method of manufacturing 'bilged barrel bodies, consisting informing a'tubu- Vas "the body.

lar imperforate cylindrical body of sheet material and subsequentlydistorting such 'body into bilged barrel formation.

9. The method of manufacturing bilged barrel bodies, consistinginforming a tubular cylindrical body of sheet material adhesively heldand subsequently and while the adhesive is in an unset condition distorting such body into bilged barrel formation.

10. The method of manufacturing bil ed barrel bodies, consistin informing a tu ular cylindrical body o sheet material adhevisely held andsubsequently andwhile the adhesive is in an unset condition distortingsuch. body into bilged barrel formation and means for maintaining suchformation until the adhesive is set.

v11. The method of manufacturing unperforate bilged barrel bodies,consisting in superimposing and overlapping the lateral portions ofstrips of sheet material coated with a slowl drying adhesive until atubular body o cylindrical formation is obtained, and distortin suchbody into bilged formation before suo adhesive is allowed to set.

12. The method of manufacturing imper- 'forate bilged barrel bodies,consisting .in superimposing and overlapping the lateral portions ofadhesively coated strips of sheet material to form a tubular cylindricalbody, and subsequently distorting such body into bilged formation.

13. The method of manufacturing Vimperforate bilged) barrel bodies,consisting in superimposmg and overlapping the lateral portions ofadhesive coated strips of sheet material to form a tubular cylindricalbody, subse uently distorting such body into bilge formation, andmaintaining such formation until the adhesive is set. a

14. The method of manufacturing imperforate bilged barrel bodies,consisting in sug perimp'osing and overlapping the lateral portions ofadhesive coated strips of sheet material to form a tubular cylindricalbody, and subsequently' distorting such body into bilged formation, saidstri s being spirally disposed with relation to t e major axis of 15.The method of manufacturing imperforate bilged barrelbodies, consistingin superimposing and overlapping the lateral portions of adhesivelycoated strips of sheet material to form a tubular cylindrical body,

and subsequently distorting such body into bilged formation bysubjecting the same tov pressure before the adhesive is set.

- 16. The method of manufacturing imperforate bilged barrel bodies,consisting in superimposing and overlapping the lateral portions ofadhesive coated strips of sheet perimposing and overlapping the lateralportions of adhesive coated strips of sheet material to form a tubularcylindrical body, and subsequently distorting such body into bilgedformation by subjecting the same to distorting pressure between theoutside and inside forms.

18. The method of manufacturing imperforate bilged barrel bodies,consisting in superimposing and overlapping adhesive coated strips ofsheet material to form a tubular cylindrical body, distorting such bodyby pressure into bilged formation, and uniting to the inside surface ofsuch bilged body rings of laminated formation extendingcircumferentially of the body and across the inner body-forming strips.-

19. The method of manufacturing imperforate bilged barrel bodies,consisting in superimposin and overlapping adhesive coated strips osheet material to form a tubular cylindrical body, distorting such bodyby pressure into bilged formation, unitinga head-retaining ring to theinner body-form. ing strips, placing a head within such body and againstsaid ring, and uniting-' another head-retaining ring to the innerbody-formngdstrips at the opposite side of the barrel In testimonywhereof I aix my signature.

,ROBERT s. BOLGER.

